the common scrambling algorithm is used to encrypt satellite TV transmissions. The well known media player VLC can use csa for transport encryption of video streams too.
For a brute force attack you need an excerpt from the encrypted transport stream as input. The key to be cracked is 48 or 64 bits long. Details

I can provide algorithm in C, linear and bit sliced implementation, and sample data. But I'd like to ask first how chances are this gets added to hashcat?